<template>
  <div class="dashboard-container">
    <div class="app-container">
      <page-tools :show-before="true">
        <span slot="before">共{{ page.total }}条记录</span>
        <template slot="after">
          <el-button size="small" type="warning" @click="$router.push('/import')">excel导入</el-button>
          <el-button size="small" type="danger" @click="exportData">导出excel</el-button>
          <el-button size="small" type="primary" @click="showDialog = true">新增员工</el-button>

        </template>
      </page-tools>
      <!-- 放置表格和分页 -->
      <el-card>

        <el-table v-loading="loading" border :data="list">
          <!-- 表格中如何显示序号 type="index" -->
          <el-table-column type="index" label="序号" sortable="" />
          <el-table-column label="姓名" sortable="" prop="username" />
          <!-- <el-table-column slot-scope="{row}"> -->
          <el-table-column v-slot="{row}" align="center" label="头像">
            <img v-imagerror="require('@/assets/common/bigUserHeader.png')" :src="row.staffPhoto" style="border-radius:50%; width:100px; height:100px; padding:10px" alt="" @click=" showQrCode(row.staffPhoto)">
          </el-table-column>
          <el-table-column label="工号" sortable="" prop="workNumber" />
          <el-table-column label="聘用形式" sortable="" :formatter="formatEmployment" prop="formOfEmployment" />
          <el-table-column label="部门" sortable="" prop="departmentName" />
          <el-table-column label="入职时间" sortable="" align="center" prop="timeOfEntry">
            <!-- 通过作用域插槽取出obj +过滤器 -->
            <!-- <template slot-scope="obj">{{ obj.row.timeOfEntry |}} </template>
            slot-scope拿到员工列表信息 data   解构出row -->
            <template slot-scope="{row}">{{ row.timeOfEntry|formatDate }}</template>
          </el-table-column>
          <el-table-column label="账号状态" align="center" sortable="" prop="enableState">

            <template slot-scope="{ row }">
              <!-- 根据当前状态来确定 是否打开开关 -->
              <el-switch :value="row.enableState === '1'" />
            </template>
          </el-table-column>
          <el-table-column label="操作" sortable="" fixed="right" width="280">
            <template slot-scope="{row}">
              <el-button type="text" size="small" @click="$router.push(`/employees/detail/${row.id}`)">查看</el-button>
              <el-button type="text" size="small">转正</el-button>
              <el-button type="text" size="small">调岗</el-button>
              <el-button type="text" size="small">离职</el-button>
              <el-button type="text" size="small" @click="editRole(row.id)">角色</el-button>
              <el-button type="text" size="small" @click="deleteEmployee(row.id)">删除</el-button>
            </template>
          </el-table-column>

        </el-table>
        <!-- 分页组件 -->
        <el-row type="flex" justify="center" align="middle" style="height: 60px">
          <el-pagination layout="prev,pager,next" :page-size="page.size" :current-page="page.page" :total="page.total" @current-change="changePage" />
        </el-row>
      </el-card>
    </div>
    <AddDemployee :show-dialog.sync="showDialog" />

    <el-dialog title="二维码" :visible.sync="showCodeDialog">
      <el-row type="flex" justify="center">
        <canvas ref="myCanvas" /></el-row>
    </el-dialog>

    <!-- 放置分配组件 -->
    <assign-role ref="assignRole" :show-role-dialog.sync="showRoleDialog" :user-id="userId" />
  </div>
</template>

<script>
import { getEmployeeList } from '../../api/employees'
import EmployeeEnum from '../../api/constant/employees' // 默认导出
import AddDemployee from './component/add-employee.vue'
import { delEmployee } from '../../api/employees'
import { formatDate } from '../../filters'

import QrCode from 'qrcode'
import AssignRole from './component/assign-role.vue'

export default {
  components: { AddDemployee, AssignRole },
  data() {
    return {
      showDialog: false,
      value: false,
      list: [], // 接收数组
      page: {
        page: 1,
        size: 10,
        total: 0 // 总数
      },
      loading: false, // 显示遮罩层
      showCodeDialog: false, // 显示二维码弹层
      showRoleDialog: false, // 分配角色弹层
      userId: null // 定义一个userID
    }
  },
  created() {
    this.getEmployeeList()
  },
  methods: {
    changePage(newPage) {
      this.page.page = newPage
      this.getEmployeeList() // 重新拉取数据
    },
    async getEmployeeList() {
      this.loading = true
      const { total, rows } = await getEmployeeList(this.page)
      this.page.total = total
      this.list = rows
      this.loading = false
    },
    formatEmployment(row, column, cellValue, index) {
      // 要去找对应的值
      const obj = EmployeeEnum.hireType.find(item => item.id === +cellValue)
      return obj ? obj.value : '未知'
    },
    async deleteEmployee(id) {
      try {
        await this.$confirm('您确定删除该员工吗')
        await delEmployee(id)
        this.getEmployeeList()
        this.$message.success('删除员工成功')
      } catch (error) {
        console.log(error)
      }
    },
    exportData() {
      // 表头印射关系
      const headers = {
        '手机号': 'mobile',
        '姓名': 'username',
        '入职日期': 'timeOfEntry',
        '聘用形式': 'formOfEmployment',
        '转正日期': 'correctionTime',
        '工号': 'workNumber',
        '部门': 'departmentName'
      }
      // 导出excel
      import ('../../vendor/Export2Excel').then(async excel => {
        const { rows } = await getEmployeeList({ page: 1, size: this.page.total })
        const data = this.formatJson(headers, rows)
        excel.export_json_to_excel({

          header: Object.keys(headers),
          data,
          filename: '员工信息表',
          autoWidth: true,
          bookType: 'xlsx'
        })

        // excel.export_json_to_excel({
        //   header: ['姓名', '工资'],
        //   data: [['张三', 3000]],
        //   filename: '员工工资表' // 表单名称
        // })
        // [{username:'张三'，mobile:'13287598'}] => [[]]
        // 要求转换数据结构  还要和表头的顺序对应上
        // 要求转出的标题是中文
      })
    },
    formatJson(headers, rows) {
      return rows.map(item => {
        return Object.keys(headers).map(key => {
          if (headers[key] === 'timeOfEntry' || headers[key] === 'correctionTime') {
            return formatDate(item[headers[key]]) // 返回格式化之前的时间
          } else if (headers[key] === 'formOfEmployment') {
            var en = EmployeeEnum.hireType.find(obj => obj.id === item[headers[key]])
            return en ? en.value : '未知'
          }
          return item[headers[key]]
        })
      })
    },

    showQrCode(url) {
    // URL存在的情况下  弹出层
      if (url) {
        this.showCodeDialog = true // 数据更新了 但是我的弹层会立刻出现吗 ？页面的渲染是异步的！！！！
        // 有一个方法可以在上一次数据更新完毕，页面渲染完毕之后
        this.$nextTick(() => {
          // 此时可以确认已经有ref对象了
          QrCode.toCanvas(this.$refs.myCanvas, url)
          // 如果转化的二维码后面信息 是一个地址的话 就会跳转到该地址 如果不是地址就会显示内容
        })
      } else {
        this.$message.warning('该用户还未上传头像')
      }
    },

    async editRole(id) {
      this.userId = id // props传值 是异步的

      this.showRoleDialog = true
      await this.$refs.assignRole.getUserDetailById(id) // 父组件调用子组件方法
    }

  }
}
</script>
